Bio-inspired and lanthanide-induced hierarchical sodium alginate/graphene oxide composite paper with enhanced physicochemical properties. (16th June 2017)

• Record Type: Journal Article
• Authors: Liu, Shunli; Ling, Jun; Li, Kewen; Yao, Fang; Oderinde, Olayinka; Zhang, Zhihong; Fu, Guodong
• Is Part Of: Composites science and technology. Volume 145(2017)
• Page Start: 62
• Page End: 70
• Publication Date: 2017-06-16
• Subjects: Bio-inspired -- Hierarchical paper -- Graphene oxide -- Sodium alginate -- Rare earth ions coordination; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2017.01.009
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: This paper reports an artificial nacre-like composite paper based on sodium alginate (SA) and graphene oxide (GO) by lanthanide ions cross-linking. SA-coated GO were used as building "bricks and mortar" and self-assembled into aligned GO/SA composite hydrogel by the coordination of lanthanide ions. Subsequently, the hierarchical GO/SA composite paper was formed under evaporation. Four types of lanthanide ions (Nd 3+, Ce 3+, Gd 3+, and Yb 3+ ) were used to fabricate hierarchical GO/SA composite papers. The lanthanides enhanced the mechanical properties of the GO/SA composite papers (strength of 255.8 ± 8.52 MPa and toughness of 4.83 ± 0.28 MJ m −3 ) and endowed the papers with high stability. Due to the anisotropic nature along parallel and perpendicular directions, the hierarchical GO/SA composite papers exhibited a specific thermal conductivity. These features greatly expand the application of the composite papers, which are believed to show competitive advantages in aerospace, electronic devices, and thermal interface materials.